Describe the functions of personal and area radiation dosimetry devices used in medical imaging.
DefinitionDescription should include
- film badge dosimeter—consists of two pieces of film that darken as badge is exposed to ionizing radiation
- pocket dosimeter—uses an air chamber to provide an immediate readout of radiation exposure but no long-term record
- thermoluminescent dosimeter—stores absorbed radiation energy in thermoluminescent chips that give off visible, measurable light when heated
- optically stimulated luminescence (OSL) badge—measures radiation that passes through a thin strip of aluminum oxide using a laser light
- ring dosimeter—contains a radiation-sensitive lithium fluoride crystal that gives off visible, measurable light when heated
- ionization chamber-type meter (Cutie Pie) and Geiger-Müller counter—field survey instruments used to measure radiation in the air.
- What is the purpose of dosimeters?
- Who should wear dosimeters?
- How does a thermoluminescent dosimeter (TLD) work?
Related Standards of Learning
The student will read, interpret, analyze, and evaluate a variety of nonfiction texts.
- Use critical thinking to generate and respond logically to literal, inferential, and evaluative questions about the text(s).
- Identify and synthesize resources to make decisions, complete tasks, and solve specific problems.
- Analyze multiple texts addressing the same topic to determine how authors reach similar or different conclusions.
- Recognize and analyze use of ambiguity, contradiction, paradox, irony, overstatement, and understatement in text.
- Analyze false premises claims, counterclaims, and other evidence in persuasive writing.
Other Related Standards
Common Career Technical Core
Identify existing and potential hazards to clients, coworkers, visitors, and self in the healthcare workplace.